#include<iostream>

using namespace std;


#define debug 10
int main()
{

#ifdef debug  
    cout<< debug <<endl;
#else 
    cout<< debug <<endl;
#endif 


    cout<<"hello world"<<endl;
    cout<<"hello world"<<endl;
//  cout<<"hello world"<<endl;
//  cout<<"hello world"<<endl;
//  cout<<"hello world"<<endl;
//  cout<<"hello world"<<endl;
    return 0;
}
